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I would like to get some advise on maximum wheel adapter (not spacers) thickness for my 1985. I presently have 1" adapters on the rear to fit my 17x9.5 Sawblades but want to bring them out to fit CE Flares. I want to keep Sawblades and I know the 11" ones would be optimal but!
Last edited by dentalfloss; Jul 14, 2021 at 03:58 PM.
The 1" adapter you have keep the wheel fairly close to the stock early-C4 location (I think about 1/4" further out). Pushing them another 1" out is going to start adding loads to the rear wheel bearings, which are already suspect on a C4, and the only new replacement bearings are garbage made in China. It will also change up the suspension geometry, but I don't know how or how much, so it may not matter much. I would personally not do this change, though. I'd search for real ZR1 wheels, which will stick out about 1.5" further than the 9.5" sawblades. You may not even need any spacers at all with those.
Thank you for your reponse. I apologize as I meant to say GS. I recently bought GS rear flares and want to install them on my 85. I presently have 17.2x9.5/56 sawblades . I want to keep sawblades as opposed Zr1 wheels. I know 11" wheels would be optimal but 11" sawblades are impossible to find. So I want to keep what I have and bring the wheel and tire out more to accommodate the flares.
Thank you for your reponse. I apologize as I meant to say GS. I recently bought GS rear flares and want to install them on my 85. I presently have 17.2x9.5/56 sawblades . I want to keep sawblades as opposed Zr1 wheels. I know 11" wheels would be optimal but 11" sawblades are impossible to find. So I want to keep what I have and bring the wheel and tire out more to accommodate the flares.
I want to keep Sawblades and I know the 11" ones would be optimal but!
I used this comment to do quick math and 'regarding wheel only' it requires 39mm to put that 9.5 outer rim edge to the same position as your 'stated' optimal.
I mentioned yours ain't 1" and it ain't - you asked for comparisons to your 1" current so either the snapshot is incorrect or you don't get the metric conversion. You current adapter is closer to a 3/4" being the 20mm spec.
@QC Vette mentioned in his 1st post 'measure' and that's certainly the more desired way to proceed. Stick on the flares, a string, a Plumb-bob and a measuring device should answer all of your question but remember, yours ain't 1".
Your at a bit of an advantage 'maybe' - done correctly (understanding the measuring device) you could actually place your 9.5 w/tire to what would be considered 'optimal' because you can use 'tire bulge' for measurements. That's actually what most actually do for custom wheel/tire placement. It could be considered optimal. Tire 'bulge & back-spacing' also gives very accurate clearance to chassis components. Wheel offset per se is seldom referenced in custom wheel/tire placement!!
I used this comment to do quick math and 'regarding wheel only' it requires 39mm to put that 9.5 outer rim edge to the same position as your 'stated' optimal.
I mentioned yours ain't 1" and it ain't - you asked for comparisons to your 1" current so either the snapshot is incorrect or you don't get the metric conversion. You current adapter is closer to a 3/4" being the 20mm spec.
@QC Vette mentioned in his 1st post 'measure' and that's certainly the more desired way to proceed. Stick on the flares, a string, a Plumb-bob and a measuring device should answer all of your question but remember, yours ain't 1".
Your at a bit of an advantage 'maybe' - done correctly (understanding the measuring device) you could actually place your 9.5 w/tire to what would be considered 'optimal' because you can use 'tire bulge' for measurements. That's actually what most actually do for custom wheel/tire placement. It could be considered optimal. Tire 'bulge & back-spacing' also gives very accurate clearance to chassis components. Wheel offset per se is seldom referenced in custom wheel/tire placement!!
I want to thank you and everybody else for your advise and I will proceed with measurements as you described and go from there. I'm guessing I will need 1 1/4 to 2" adapters. I am presently looking for quality adapters such as Bora,ECCPP,Spider trax, to see what they have. Again, Thank you.
I want to thank you and everybody else for your advise and I will proceed with measurements as you described and go from there. I'm guessing I will need 1 1/4 to 2" adapters. I am presently looking for quality adapters such as Bora,ECCPP,Spider trax, to see what they have. Again, Thank you.
It looks like you've got longer studs in your adapters so for 'measuring purposes' you could stack washers on 3 or more studs. Maybe someone has some 1.5" that you could try!!
Wheel adapters?
